T20 Cleaning Operation - Canon iPF9000S Troubleshooting Manual

T20 Cleaning operation

1. Manual cleaning
1-1. Cleaning A (Normal suction)
The purge pump is driven, with the ink supply valve open, to adjust the nozzle conditions
※About 1 to 2 g of ink is consumed for each color per head.
1-2. Cleaning B (Normal suction, high)
The purge pump is driven, with the ink supply valve closed, to increase the internal negative pressure. Then
when the valve is released, the ink infiltrate the head at once, eliminating the air accumulated in the liquid
chamber in the filter under the head.
※About 5 to 7 g of ink is consumed for each color per head.
2. Automatic Cleaning
2-1. Initial Filling
The ink tube and head are filled with ink at installation. Initial filling is similar in the principle of cleaning
operation to Cleaning B.
※The longer the tube is, the more ink is consumed.
※About 15 to 25 g of ink is consumed for each color per head. (17- and 24-inch model), when compared
with about 45 to 55 g (36-, 44- and 60-inch models).
2-2. Timed Suction 1 (Turned on automatically 168 to 720 hours after capping; normal suction)
Timed Suction 1 is similar in the principle of cleaning operation to Cleaning B.
※About, 5 to 7 g of ink is consumed for each color per head.
2-3. Timed Suction 2 (Turned on automatically 960 hours after capping: liquid level adjustment)
Timed Suction 2 is similar in the principle of cleaning operation to two iterative cycles of Cleaning B.
※About 10 to 14 g of ink is consumed for each color per head.
2-4. Head Replacement (Draining the head you want to replace and filling the new head with ink)
※About 17 g of ink is consumed for each color per head.
Chapter 4 Fault Isolation Tool Collection
4-37